Re: [PATCH] igb_uio: MSI IRQ mode, irq enable/disable refactored

On Mon, 21 Aug 2017 19:33:45 +0200
Markus Theil [off-list ref] wrote:

This patch adds MSI IRQ mode and in a way, that should
also work on older kernel versions. The base for my patch
was an attempt to do this in cf705bc36c which was later reverted in
d8ee82745a. Compilation was tested on Linux 3.2, 4.10 and 4.12.

MSI(X) setup was already using pci_alloc_irq_vectors before,
but calls to pci_free_irq_vectors were missing and added.

Signed-off-by: Markus Theil <redacted>

I wonder if DPDK should only N-1 Long Term Stable kernel.org kernels?
That would mean 4.4.83 or later now, and 4.9 or later starting with 18.XX releases.

If enterprise distro's want to backport more, that is their prerogative but upstream
DPDK shouldn't have to worry about it. The current mess with KNI especially is out
of hand.